10 Data Frames

Reminders: R is picky in its notation; you need to distinguish between upper/lower case. There are many ways of doing the same thing in R.

Type the code provided below in a R script to see the results. Typing is better than copying the code, as you might make a mistake in typing that allows you to learn how to debug your coding.

This chapter assumes that you have data in your workspace in R.

Data Frames are objects that contain data. The data can be a mix of numerical, categorical and text. This chapter introduces you to the basic features of a data frame and some basic manipulations of the data.

See Section 12.1 for information about including different data types in R.